HEIC converter in Python and Node

pip install fire Pillow pillow_heif

# heic_converter.py
import fire
from PIL import Image
from pillow_heif import register_heif_opener
from pathlib import Path
 
 
def heic_converter(filename):
    register_heif_opener()
    img = Image.open(filename)
    img2 = (
        Path(Path(filename).resolve().parent / Path(filename).stem).as_posix() + ".jpg"
    )
    img.save(img2)
 
 
if __name__ == "__main__":
    fire.Fire(heic_converter)
 

# image.HEIC -> image.jpg
python heic_converter.py image.HEIC

npm i commander heic-convert

// index.js
const fs = require("fs")
const path = require("path")
const { program } = require("commander")
const { promisify } = require("util")
const heicConvert = require("heic-convert")
 
const convert = async (filename, quality) => {
  const inputBuffer = await promisify(fs.readFile)(filename)
  const outputBuffer = await heicConvert({
    buffer: inputBuffer,
    format: "JPEG",
    quality,
  })
 
  const basePath = path.dirname(filename)
  const name = path.basename(filename, path.extname(filename))
  const newFilename = path.join(basePath, `${name}.jpg`)
 
  await promisify(fs.writeFile)(newFilename, outputBuffer)
}
 
program.option("-f, --filename <char>").option("-q, --quality <char>", "quality", "0.5")
program.parse()
 
convert(program.opts().filename, program.opts().quality)

# image.HEIC -> image.jpg
node index.js -f image.HEIC
node index.js -f image.HEIC -q 0.5